Abstract: The loading, firing and ejection of beltless, cased ammunition is facilitated by the use of an oscillating breech having two breech chambers defined therethrough, which breech is disposed between two parallel ammunition chutes. Unfired rounds are provided to a load position in a first ammunition chute and the oscillating breech rotated to align one chamber with the load position. The unfired round is rammed into the aligned chamber, thereby forcing the spent cartridge just fired from the opposing end of the chamber into an eject position in a second opposing ammunition chute. Meanwhile, a second chamber within the oscillating breech is simultaneously aligned with a corresponding one of two barrel bores and fired.

Abstract: A tactical wire-cutting system for helicopters includes a forwardly extending probe having a plurality of explosive cutting charges disposed along the probe. The probe is inclined with respect to the vertical as defined by the normal helicopter trim during flight such that a suspended cable will come into successive contact with the explosive cutting charges. The charges are designed to catch and hold the cable until detonation and thereafter to allow the cable to proceed to the next successfully positioned charge if unsevered.